Pain

Question 1

What are the two ascending neural pathways of the sematosensory system

Answer 1

discriminative

antereolateral

Question 2

What type of transmission does the discrim pathway use

Answer 2

rapid transmission such as discriminative touch

Question 3

What types of neurons does the discrim pathway use

Answer 3

dorsal root ganglions
dorsal collumn nuclei
thalamic neurons

Question 4

What is the pathway of discrim

Answer 4

the dorsal root ganglion project there axons into the dorsal horn of the spinal cord where the dorsal column nuclei send there axons across the midline of the medulla and into the thalamus, then the thalamic neurons project into the primary somatosensory cortex

Question 5

What are the dorsal column nuclei called when they band together at the midline of the medulla

Answer 5

medial lemniscus

Question 6

What type of sensations does the discriminative pathway read

Answer 6

position

discriminative touch

Question 7

What is a distinct feature of the discrim path

Answer 7

it relays precise information of spatial orientation

Question 8

The precise information of spatial orientation in discrim path is the only pathway for what

Answer 8

muscle and joint movement
vibration
delicate discrim touch

Question 9

What test is testing the discriminative path

Answer 9

two point discrimination

Question 10

Whats an example of the discrim path

Answer 10

identifying what an object with only touch

Question 11

What is this example called

Answer 11

stereognosis

Question 12

What happens if the person has damage to the association area of the brain relating to discrim path

Answer 12

they will be able to discribe something but unable to identify what it is

Question 13

What is this deficit called

Answer 13

astereognosis

Question 14

What does the anterolateral pathway consist of

Answer 14

bilateral, multisynaptic, and slow-conducting tracts

Question 15

What types of sensation does the anterolateral path signal

Answer 15

pain
thermal
crude touch
pressure

Question 16

Where does the anterolateral path neurons start

Answer 16

dorsal horns at the segmental nerve level of the spinal cord

Question 17

Where do the neurons of the ant path travel to in the spinal cord

Answer 17

they pass over the anterior commissure, within a few segments, into the anterolateral column on the opposite side of the cord

Question 18

What type of neurons and how many, does the neospinal stract use

Answer 18

at least three neurons with long axons

Question 19

What type of neurons does the paleospinal tract use

Answer 19

bilateral, multisynaptic, and slow-conducting

Question 20

What does the paleospinal tract give touch

Answer 20

its emotional aspect

Question 21

What does the paleospinal tract affect

Answer 21

mood arousal attention and the startled reaction from intense stimuli
the ANS responses like HR, BP, pupil dilation, skin conditions

Question 22

Is touch or thermal sensation perceived faster

Answer 22

touch

Question 23

All tactile sensation that requires rapid transmission take

Answer 23

the discriminative path

Question 24

Position sense is impaired by

Answer 24

damage to the posterior column of the spinal cord